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-rw-r--r--src/engine/LV2Plugin.cpp275
1 files changed, 0 insertions, 275 deletions
diff --git a/src/engine/LV2Plugin.cpp b/src/engine/LV2Plugin.cpp
deleted file mode 100644
index 1c74bca9..00000000
--- a/src/engine/LV2Plugin.cpp
+++ /dev/null
@@ -1,275 +0,0 @@
-/* This file is part of Om. Copyright (C) 2006 Dave Robillard.
- *
- * Om is free software; you can redistribute it and/or modify it under the
- * terms of the GNU General Public License as published by the Free Software
- * Foundation; either version 2 of the License, or (at your option) any later
- * version.
- *
- * Om is distributed in the hope that it will be useful, but WITHOUT ANY
- * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
- * FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "LV2Plugin.h"
-#include <iostream>
-#include <cassert>
-#include "float.h"
-#include <stdint.h>
-#include <cmath>
-#include "InputPort.h"
-#include "OutputPort.h"
-#include "PortInfo.h"
-#include "Plugin.h"
-
-namespace Om {
-
-
-/** Partially construct a LV2Plugin.
- *
- * Object is not usable until instantiate() is called with success.
- * (It _will_ crash!)
- */
-LV2Plugin::LV2Plugin(const string& name,
- size_t poly,
- Patch* parent,
- const SLV2Plugin* plugin,
- samplerate srate,
- size_t buffer_size)
-: NodeBase(name, poly, parent, srate, buffer_size),
- m_lv2_plugin(plugin),
- m_instances(NULL)
-{
- assert(m_lv2_plugin);
-
- // Note that this may be changed by an overriding DSSIPlugin
- // ie do not assume m_ports is all LV2 plugin ports
- m_num_ports = slv2_plugin_get_num_ports(m_lv2_plugin);
-}
-
-
-/** Instantiate self from LV2 plugin descriptor.
- *
- * Implemented as a seperate function (rather than in the constructor) to
- * allow graceful error-catching of broken plugins.
- *
- * Returns whether or not plugin was successfully instantiated. If return
- * value is false, this object may not be used.
- */
-bool
-LV2Plugin::instantiate()
-{
- m_ports.alloc(m_num_ports);
-
- m_instances = new SLV2Instance*[m_poly];
-
- size_t port_buffer_size = 0;
-
- for (size_t i=0; i < m_poly; ++i) {
- m_instances[i] = slv2_plugin_instantiate(m_lv2_plugin, m_srate, NULL);
- if (m_instances[i] == NULL) {
- cerr << "Failed to instantiate plugin!" << endl;
- return false;
- }
- }
-
- string port_name;
- string port_path;
-
- Port* port = NULL;
-
- for (size_t j=0; j < m_num_ports; ++j) {
- // LV2 shortnames are guaranteed to be unique
- port_name = (char*)slv2_port_get_symbol(m_lv2_plugin, j);
-
- string::size_type slash_index;
-
- // Replace all slashes with "-" (so they don't screw up paths)
- while ((slash_index = port_name.find("/")) != string::npos)
- port_name[slash_index] = '-';
-
- port_path = path() + "/" + port_name;
-
- // Assumes there is only the 4 classes
-
- SLV2PortClass port_class = slv2_port_get_class(m_lv2_plugin, j);
- const bool is_control = (port_class == SLV2_CONTROL_RATE_INPUT
- || port_class == SLV2_CONTROL_RATE_OUTPUT);
- const bool is_input = (port_class == SLV2_CONTROL_RATE_INPUT
- || port_class == SLV2_AUDIO_RATE_INPUT);
-
- if (is_control)
- port_buffer_size = 1;
- else
- port_buffer_size = m_buffer_size;
-
- PortType type = is_control ? CONTROL : AUDIO;
- PortDirection direction = is_input ? INPUT : OUTPUT;
-
- if (is_input) {
- port = new InputPort<sample>(this, port_name, j, m_poly,
- new PortInfo(port_path, type, direction), port_buffer_size);
- m_ports.at(j) = port;
- } else /* output */ {
- port = new OutputPort<sample>(this, port_name, j, m_poly,
- new PortInfo(port_path, type, direction), port_buffer_size);
- m_ports.at(j) = port;
- }
-
- assert(m_ports.at(j) != NULL);
-
- PortInfo* pi = port->port_info();
- get_port_vals(j, pi);
-
- // Set default control val
- if (pi->is_control())
- ((PortBase<sample>*)port)->set_value(pi->default_val(), 0);
- else
- ((PortBase<sample>*)port)->set_value(0.0f, 0);
- }
- return true;
-}
-
-
-LV2Plugin::~LV2Plugin()
-{
- for (size_t i=0; i < m_poly; ++i)
- slv2_instance_free(m_instances[i]);
-
- delete[] m_instances;
-}
-
-
-void
-LV2Plugin::activate()
-{
- NodeBase::activate();
-
- PortBase<sample>* port = NULL;
-
- for (size_t i=0; i < m_poly; ++i) {
- for (unsigned long j=0; j < m_num_ports; ++j) {
- port = static_cast<PortBase<sample>*>(m_ports.at(j));
- set_port_buffer(i, j, ((PortBase<sample>*)m_ports.at(j))->buffer(i)->data());
- if (port->port_info()->is_control())
- port->set_value(port->port_info()->default_val(), 0);
- else if (port->port_info()->is_audio())
- port->set_value(0.0f, 0);
- }
- slv2_instance_activate(m_instances[i]);
- }
-}
-
-
-void
-LV2Plugin::deactivate()
-{
- NodeBase::deactivate();
-
- for (size_t i=0; i < m_poly; ++i)
- slv2_instance_deactivate(m_instances[i]);
-}
-
-
-void
-LV2Plugin::run(size_t nframes)
-{
- NodeBase::run(nframes); // mixes down input ports
- for (size_t i=0; i < m_poly; ++i)
- slv2_instance_run(m_instances[i], nframes);
-}
-
-
-void
-LV2Plugin::set_port_buffer(size_t voice, size_t port_num, void* buf)
-{
- assert(voice < m_poly);
-
- // Could be a MIDI port after this
- if (port_num < m_num_ports) {
- slv2_instance_connect_port(m_instances[voice], port_num, buf);
- }
-}
-
-
-// Based on code stolen from jack-rack
-void
-LV2Plugin::get_port_vals(ulong port_index, PortInfo* info)
-{
-#if 0
- LV2_Data upper = 0.0f;
- LV2_Data lower = 0.0f;
- LV2_Data normal = 0.0f;
- LV2_PortRangeHintDescriptor hint_descriptor = m_descriptor->PortRangeHints[port_index].HintDescriptor;
-
- /* set upper and lower, possibly adjusted to the sample rate */
- if (LV2_IS_HINT_SAMPLE_RATE(hint_descriptor)) {
- upper = m_descriptor->PortRangeHints[port_index].UpperBound * m_srate;
- lower = m_descriptor->PortRangeHints[port_index].LowerBound * m_srate;
- } else {
- upper = m_descriptor->PortRangeHints[port_index].UpperBound;
- lower = m_descriptor->PortRangeHints[port_index].LowerBound;
- }
-
- if (LV2_IS_HINT_LOGARITHMIC(hint_descriptor)) {
- /* FLT_EPSILON is defined as the different between 1.0 and the minimum
- * float greater than 1.0. So, if lower is < FLT_EPSILON, it will be 1.0
- * and the logarithmic control will have a base of 1 and thus not change
- */
- if (lower < FLT_EPSILON) lower = FLT_EPSILON;
- }
-
-
- if (LV2_IS_HINT_HAS_DEFAULT(hint_descriptor)) {
-
- if (LV2_IS_HINT_DEFAULT_MINIMUM(hint_descriptor)) {
- normal = lower;
- } else if (LV2_IS_HINT_DEFAULT_LOW(hint_descriptor)) {
- if (LV2_IS_HINT_LOGARITHMIC(hint_descriptor)) {
- normal = exp(log(lower) * 0.75 + log(upper) * 0.25);
- } else {
- normal = lower * 0.75 + upper * 0.25;
- }
- } else if (LV2_IS_HINT_DEFAULT_MIDDLE(hint_descriptor)) {
- if (LV2_IS_HINT_LOGARITHMIC(hint_descriptor)) {
- normal = exp(log(lower) * 0.5 + log(upper) * 0.5);
- } else {
- normal = lower * 0.5 + upper * 0.5;
- }
- } else if (LV2_IS_HINT_DEFAULT_HIGH(hint_descriptor)) {
- if (LV2_IS_HINT_LOGARITHMIC(hint_descriptor)) {
- normal = exp(log(lower) * 0.25 + log(upper) * 0.75);
- } else {
- normal = lower * 0.25 + upper * 0.75;
- }
- } else if (LV2_IS_HINT_DEFAULT_MAXIMUM(hint_descriptor)) {
- normal = upper;
- } else if (LV2_IS_HINT_DEFAULT_0(hint_descriptor)) {
- normal = 0.0;
- } else if (LV2_IS_HINT_DEFAULT_1(hint_descriptor)) {
- normal = 1.0;
- } else if (LV2_IS_HINT_DEFAULT_100(hint_descriptor)) {
- normal = 100.0;
- } else if (LV2_IS_HINT_DEFAULT_440(hint_descriptor)) {
- normal = 440.0;
- }
- } else { // No default hint
- if (LV2_IS_HINT_BOUNDED_BELOW(hint_descriptor)) {
- normal = lower;
- } else if (LV2_IS_HINT_BOUNDED_ABOVE(hint_descriptor)) {
- normal = upper;
- }
- }
-
- info->min_val(lower);
- info->default_val(normal);
- info->max_val(upper);
-#endif
-}
-
-
-} // namespace Om
-
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